sundance-communications.com/forum Forums TDM Business Telephone Systems Nortel Telephones & Systems DTMF tones through an ATA

Hi folks.

I have a Nortel 6x16 KSU, and a NT8B90AC ATA plugged into one of the ports (with an analog phone on the other side of the ATA).

I've noticed that when a call is placed from a Nortel phone to the ATA, that DTMF tones are not passed through to the analog phone.

Is this a configuration issue? I want to replace the analog phone with a different device that needs to be able to receive DTMF info, and right now the ATA isn't allowing that.

Thanks!

What type of device do you want to connect to the ATA? Some type of Voicemail?

When you say "from a nortel phone to the ATA", do you mean internal intercom calls?

If you have an ATA with an analog cordless unit connected to it, and I call you , and you answer, you will hear DTMF on your end, if I start pressing digits on my end.

For troubleshooting purposes, I have a regular old analog phone connected to the ATA.

What you describe above is what I'd like to have happen, but is not. A call is placed from a phone to the ATA...the analog phone rings...I pick it up, and the call is in progress...I press digits on the phone that placed the call, but the DTMF tones are not heard on the analog phone.

Any idea why?

What Rich said. :thumb:

I'll just add: If you are trying to test your application from an internal phone, you can send tones through the ATA by invoking the 'Long Tones' feature (808).

Good Luck!

An ATA will not let the DTMF go through. But you can use a VMI (voice mail interface) unit that will let DTMF pass. It was designed for use with 3rd party voice mails and the Norstar.

Crud. I wanted to be able to use an ATA.

What is the difference between an ATA and a VMI?

Sure it will, by default from external calls and with 'Long Tones' from internal calls. Is your application internal or external?

The VMI will act just like an ATA to the analog device. But you can also go in with Feature codes and make changes to it so it will communicate with voice mail systems to do Message Waiting Lights and thngs like that.

It's an internal application.

So, is the "long tones" feature something that needs to be configured on the ATA, or the calling station?

Long Tones is only a call by call basics. I'm sorry I thought he was looking for somthing that allowed the tones all the time.